Kinematic and Dynamic Assessment of Trunk Exoskeleton

A novel approach to quantify the assistive torque profiles generated by passive back-support exoskeletons

“…We similarly found no obvious effect of controlled flexion/extension speeds (Figure A1). Both the BackX™ and Laevo™ utilize a gasspring mechanism for torque generation (Kazerooni et al, 2019;Panero et al, 2021). As is typical of a gas spring, friction forces are added or subtracted to static forces generated respectively when being compressed (i.e., flexion phase) or extended (i.e., extension phase).…”